Umar, A, B, N, A, B, A.(2008).Useful Ways of Leading a Happy Life .Riyadh:Ministry of Islamic Affairs, Endowments, Da\\\'wah and Guidance.
Gaya MLA
Umar, Abdurrahman, Bin, Nasir, Al-Sady, Bashir, ALiyu."Useful Ways of Leading a Happy Life".Riyadh:Ministry of Islamic Affairs, Endowments, Da\\\'wah and Guidance,2008.Text.